What worried the mother most was __________ the Internet after class in this school.
| A．her son’s not forbidding surfing | B．her son’s not being forbidden to surf |
| C．her son’s being not forbidden to surf | D．her son’s having not forbidden surfing |
Luckily, the miners who were ______ when the mine was flooded have been rescued.
| A．trapping | B．trapped |
| C．attacked | D．attacking |
You have no idea how she finished the relay race ______ her foot wounded so much.
| A．for | B．when |
| C．with | D．while |
I hope you should achieve a ______ between your school work and your hobbies.
| A．difference | B．balance |
| C．connection | D．weight |
The coal miners ______ in the coal mine for 10 hours before we came to their rescue.
| A．had trapped | B．had been trapping |
| C．had been trapped | D．would have been trapped |
______ ，customers spend about 1.5 million pounds a day.
| A．In average | B．On average |
| C．In common | D．On the contrary |